(1) Plenty of experiments have proved that the glucose in subcutaneous tissue is equal to or strictly corresponds with a stable blood glucose rate. Further, glucose in subcutaneous tissue represents the human body’s physiological glucose concentration better than blood glucose.

(2) To appraise the effect of glucose control on the individual and monitor the glucose of serious patients.

(3) To adjust the insulin therapy and the insulin formula according to the needs of the individual patient.

(4) To appraise the effects and side effects of diabetes drugs for each patient, and analyze and appraise new medicines and therapies.

(6) To diagnose patients suspected of having diabetes or IGT and to discover hyperglycemia, hypoglycemia, DMDP (dawn phenomenon) and the lasting time of hyperglycemia and hypoglycemia without symptoms.

(7) To diagnose gestational diabetes mellitus.

(8) To check for diabetes in patients with chronic health problems.

(9) To overcome the limitations of single testing; to provide continuous 72 hours’ glucose monitoring; and report 1,440 average glucose values.

(10) It is important for the recovery judgment of juvenile diabetes, diabetes in the elderly, gestational diabetes and diabetes with complications.